Use the method of successive approximations to determine the pH and concentrations of H 2 A , HA − , and A 2 − in a solution of 2.00 × 10 − 3 M monopotassium fumarate ( KHA ). The p K a values for fumaric acid are 3.02 ( p K a1 ) and 4.48 ( p K a2 ).

All of the following are part of the biosphere except

One way that radioactive waste is treated is by burying it in repositories. the repositories are found only in states with very low populations. true or false? a. trueb. false(also i meant to put high school but it put down middle school instead)

A5.000 g sample of niso4 h2o decomposed to give 2.755 g of anhydrous niso4. what is the formula of the hydrate? what is the full chemical name for the hydrate? what is the molar mass of the hydrate? niso4•_h2o what is the mass % of water in the hydrate?